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Solution ID : SO5733

Last Modified : 05/02/2018

Sign and encrypt mail in Microsoft Outlook 2003

Problem

Sign and encrypt mail in Microsoft Outlook 2003
Sign and encrypt mail

Solution

To sign and encrypt mail in Microsoft Outlook 2003 follow the steps below :

 

How to Send a Signed Message:

 

1. Open a new message.

2. On the View menu, click Options.

3. Click on Security Settings.

4. Click to select the Add digital signature to outgoing message check box, and then click Close.

5. Complete and send the message.

 

The message received is marked with a certificate icon in the lower-right corner of the header. The recipient can click this icon to see the validation information about your digital signature.

 

How to Send an Encrypted Message:

 

1. Open a new message.

2. On the View menu, click Options.

3. Click on Security Settings.

4. Click to select the Encrypt message contents and attachments check box, and then click Close.

5. Complete and send the message.

The message received is marked by a Lock icon in the lower-right corner of the header. The recipient can click this icon to see the validation information about the encryption certificate.

 

Note: When you send an encrypted message, you may receive the following "Non-Secure Recipients" message:

None of the recipients can process an encrypted message. You can either proceed with an unencrypted message or cancel the operation.

 

This is because you addressed the message by using the Global Address List or other non-contact address source. You must use the contact record that contains the recipient's digital ID to address the message.

 

How to Sign or Encrypt All Messages That You Send:

 

1. On the Tools menu, click Options.

2. On the Security tab, click to select Encrypt contents and attachments for outgoing messages or Add digital signature to outgoing messages, and then click OK.

 

For more information see Microsoft's Knowledge Base article at the following link: http://support.microsoft.com/default.aspx?scid=kb;en-us;286159&Product=out2003

 

NOTE: To specify that recipients whose e-mail clients do not support S/MIME signatures are allowed to read the message without verification of the digital signature, click to select Send clear text signed message